AUTHOR=Becker Saskia Jasmin , Börnert-Ringleb Moritz TITLE=Stress and anxiety in schools: a multilevel analysis of individual and class-level effects of achievement and competitiveness JOURNAL=Frontiers in Education VOLUME=9 YEAR=2025 URL=https://www.frontiersin.org/journals/education/articles/10.3389/feduc.2024.1519161 DOI=10.3389/feduc.2024.1519161 ISSN=2504-284X